#170376 - Nanashi - Sun Sep 20, 2009 7:45 am
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#include <nds.h> #include "starField.h" #include "splash.h" #include "man.h" #include "woman.h" #define FRAMES_PER_ANIMATION 3 /* Select a low priority DMA channel to perform our background copying. */ static const int DMA_CHANNEL = 3; void initVideo() { /* * Map VRAM to display a background on the main and sub screens. * * The vramSetMainBanks function takes four arguments, one for each of the * major VRAM banks. We can use it as shorthand for assigning values to * each of the VRAM bank's control registers. * * We map banks A and B to main screen background memory. This gives us * 256KB, which is a healthy amount for 16-bit graphics. * * We map bank C to sub screen background memory. * * We map bank D to LCD. This setting is generally used for when we aren't * using a particular bank. */ vramSetMainBanks(VRAM_A_MAIN_BG_0x06000000, VRAM_B_MAIN_BG_0x06020000, VRAM_C_SUB_BG_0x06200000, VRAM_D_LCD); vramSetBankE(VRAM_E_MAIN_SPRITE); vramSetBankF(VRAM_F_MAIN_SPRITE); /* Set the video mode on the main screen. */ videoSetMode(MODE_5_2D | // Set the graphics mode to Mode 5 DISPLAY_BG2_ACTIVE | // Enable BG2 for display DISPLAY_BG3_ACTIVE); //Enable BG3 for display /* Set the video mode on the sub screen. */ videoSetModeSub(MODE_5_2D | // Set the graphics mode to Mode 5 DISPLAY_BG3_ACTIVE); // Enable BG3 for display } void initBackgrounds() { /* Set up affine background 3 on main as a 16-bit color background. */ REG_BG3CNT = BG_BMP16_256x256 | BG_BMP_BASE(0) | // The starting place in memory BG_PRIORITY(3); // A low priority /* Set the affine transformation matrix for the main screen background 3 * to be the identity matrix. */ REG_BG3PA = 1 << 8; REG_BG3PB = 0; REG_BG3PC = 0; REG_BG3PD = 1 << 8; /* Place main screen background 3 at the origin (upper left of the * screen). */ REG_BG3X = 0; REG_BG3Y = 0; /* Set up affine background 2 on main as a 16-bit color background. */ REG_BG2CNT = BG_BMP16_128x128 | BG_BMP_BASE(8) | // The starting place in memory BG_PRIORITY(2); // A higher priority /* Set the affine transformation matrix for the main screen background 3 * to be the identity matrix. */ REG_BG2PA = 1 << 8; REG_BG2PB = 0; REG_BG2PC = 0; REG_BG2PD = 1 << 8; /* Place main screen background 2 in an interesting place. */ REG_BG2X = -(SCREEN_WIDTH / 2 - 32) << 8; REG_BG2Y = -32 << 8; /* Set up affine background 3 on the sub screen as a 16-bit color * background. */ REG_BG3CNT_SUB = BG_BMP16_256x256 | BG_BMP_BASE(0) | // The starting place in memory BG_PRIORITY(3); // A low priority /* Set the affine transformation matrix for the sub screen background 3 * to be the identity matrix. */ REG_BG3PA_SUB = 1 << 8; REG_BG3PB_SUB = 0; REG_BG3PC_SUB = 0; REG_BG3PD_SUB = 1 << 8; /* * Place main screen background 3 at the origin (upper left of the screen) */ REG_BG3X_SUB = 0; REG_BG3Y_SUB = 0; } void displayStarField() { dmaCopyHalfWords(DMA_CHANNEL, starFieldBitmap, /* This variable is generated for us by * grit. */ (uint16 *)BG_BMP_RAM(0), /* Our address for main * background 3 */ starFieldBitmapLen); /* This length (in bytes) is generated * from grit. */ } void displaySplash() { dmaCopyHalfWords(DMA_CHANNEL, splashBitmap, /* This variable is generated for us by * grit. */ (uint16 *)BG_BMP_RAM_SUB(0), /* Our address for sub * background 3 */ splashBitmapLen); /* This length (in bytes) is generated * from grit. */ } //--------------------------------------------------------------------- // The man sprite // he needs a single pointer to sprite memory // and a reference to his frame graphics so they // can be loaded as needed //--------------------------------------------------------------------- typedef struct { int x; int y; u16* sprite_gfx_mem; u8* frame_gfx; int state; int anim_frame; }Man; enum SpriteState {W_UP = 0, W_RIGHT = 1, W_DOWN = 2, W_LEFT = 3}; //--------------------------------------------------------------------- // Screen dimentions //--------------------------------------------------------------------- enum {SCREEN_TOP = 0, SCREEN_BOTTOM = 192, SCREEN_LEFT = 0, SCREEN_RIGHT = 256}; void animateMan(Man *sprite) { int frame = sprite->anim_frame + sprite->state * FRAMES_PER_ANIMATION; u8* offset = sprite->frame_gfx + frame * 32*32; dmaCopy(offset, sprite->sprite_gfx_mem, 32*32); } //--------------------------------------------------------------------- // Initializing a man requires little work, allocate room for one frame // and set the frame gfx pointer //--------------------------------------------------------------------- void initMan(Man *sprite, u8* gfx) { sprite->sprite_gfx_mem = oamAllocateGfx(&oamMain, SpriteSize_32x32, SpriteColorFormat_256Color); sprite->frame_gfx = (u8*)gfx; } void displayHero() { dmaCopy(manPal, SPRITE_PALETTE, 512); dmaCopy(womanPal, SPRITE_PALETTE, 512); } typedef struct { int x; int y; u16* sprite_gfx_mem[12]; int gfx_frame; int state; int anim_frame; }Woman; void animateWoman(Woman *sprite) { sprite->gfx_frame = sprite->anim_frame + sprite->state * FRAMES_PER_ANIMATION; } //--------------------------------------------------------------------- // Initializing a woman requires us to load all of her graphics frames // into memory //--------------------------------------------------------------------- void initWoman(Woman *sprite, u8* gfx) { int i; for(i = 0; i < 12; i++) { sprite->sprite_gfx_mem[i] = oamAllocateGfx(&oamSub, SpriteSize_32x32, SpriteColorFormat_256Color); dmaCopy(gfx, sprite->sprite_gfx_mem[i], 32*32); gfx += 32*32; } } int main() { Man man = {0,0}; Woman woman = {20,20}; /* Turn on the 2D graphics core. */ powerOn(POWER_ALL_2D); /* Configure the VRAM and background control registers. */ lcdMainOnBottom(); // Place the main screen on the bottom physical screen initVideo(); initBackgrounds(); displayStarField(); displaySplash(); oamInit(&oamMain, SpriteMapping_1D_128, false); initWoman(&woman, (u8*)womanTiles); initMan(&man, (u8*)manTiles); displayHero(); man.state = W_DOWN; woman.state = W_DOWN; while(1) { scanKeys(); int keys = keysHeld(); if(keys) { if(keys & KEY_UP) { if(man.y >= SCREEN_TOP) man.y--; man.state = W_UP; } if(keys & KEY_LEFT) { if(man.x >= SCREEN_LEFT) man.x--; man.state = W_LEFT; } if(keys & KEY_RIGHT) { if(man.x <= SCREEN_RIGHT -32) man.x++; man.state = W_RIGHT; } if(keys & KEY_DOWN) { if(man.y <= SCREEN_BOTTOM -32) man.y++; man.state = W_DOWN; } man.anim_frame++; woman.anim_frame++; if(man.anim_frame >= FRAMES_PER_ANIMATION) man.anim_frame = 0; if(woman.anim_frame >= FRAMES_PER_ANIMATION) woman.anim_frame = 0; } animateMan(&man); animateWoman(&woman); //----------------------------------------------------------------- // Set oam attributes, notice the only difference is in the sprite // graphics memory pointer argument. The man only has one pointer // while the women has an array of pointers //----------------------------------------------------------------- oamSet(&oamMain, 0, man.x, man.y, 0, 0, SpriteSize_32x32, SpriteColorFormat_256Color, man.sprite_gfx_mem, -1, false, false, false, false, false); oamSet(&oamMain, 1, woman.x, woman.y, 0, 0, SpriteSize_32x32, SpriteColorFormat_256Color, woman.sprite_gfx_mem[woman.gfx_frame], -1, false, false, false, false, false); swiWaitForVBlank(); oamUpdate(&oamMain); } return 0; } |
Ok here is the problem i have a function to display my two heroes
called displayHero but when i load my heroes in the same screen they becoming like the first hero and they loose the colors anyone can help or tell me whats the problem??:S:SS:SS
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